I have actually been ordering most of my yarn online from a shop in Reno. They have a much better selection than the two yarn shops here in town, they have great search capabilities, and they often mark yarns down by as much as half. They don't charge sales tax, if your order is large enough there's no shipping charge, and they ship fast. Plus, if you create an account they give you rewards bucks for the money you spend. In case you're interested, they're Jimmy Beans Wool. I just found out about a new yarn shop that's opened about two blocks from where I work, I must check it out one of these days.
I'm not familiar with Estonian knitting. Right now I'm working with some new patterns I've recently purchased. Taught myself the entrelac technique, that was fun.
I've got tons of knitting books from my mom from the 1960s (Vogue Knitting and others) that have some great patterns I'd love to try. The challenge is finding the right yarn.